Driving circuit for electro-optical device, electro-optical device, and electronic apparatus
US6580423B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1999 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Aug 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/2011
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device is miniaturized by efficiently using an area on a substrate in a liquid-crystal device, and the like, of a type in which a driving circuit is contained and plural data lines are driven simultaneously. On a substrate of a liquid-crystal device, a sampling circuit for sampling an image signal, and a data line driving circuit for supplying a sampling control signal simultaneously to each group of sampling switches connected to plural adjacent data lines are provided. The data line driving circuit includes a buffer circuit including inverters having thin-film transistors for shaping the waveform of a transfer signal which is input from a shift register circuit and for outputting it as a sampling control signal in such a manner as to correspond to each latch circuit. This thin-film transistor, whose direction of its channel width is in the horizontal direction, includes a channel portion having a channel width equal to the width of plural data lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.